Khalistan Liberation Force (KLF) chief Harminder Singh Mintoo, who had escaped from Nabha jail in Punjba along with five other inmates yesterday and was arrested by Delhi police from Nizamuddin railway station, was in touch with terror groups in Pakistan, Punjab police said today.

The dreaded terrorist would be subject to "intensive interrogation" when he would be brought from Delhi, the DGP said.

"We will put him to intensive interrogation after we bring him to Punjab," he further said.

Yesterday, Punjab Deputy Chief Minister Sukhbir Singh Badal had voiced apprehension that Pakistan could be behind the sensational Nabha jailbreak, saying the neighbouring country was "desperate to revive terrorism" after Indian army conducted the surgical strike across the LoC.

Mintoo, who was wanted in ten terror offences, was arrested by Punjab Police after he was deported from Thailand in November 2014.

DGP further said that Parminder Singh Pinda would also be questioned when he would be brought to the state.

Pinda was arrested last evening from Kairana in Uttar Pradesh's Shamli district by UP Police.

In a sensational jailbreak, Mintoo yesterday escaped along with five other prisoners after armed men in police uniform stormed the high-security Nabha prison in Patiala. He was nabbed from Nizamuddin railway station in Delhi today.

(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)